The last remaining of three brick barracks constructed in 1880 by the U.S. Army to quarter troops engaged in scouting and escort duty along the Rio Grande.
The structure originally had four large rooms, divided by a central stairway. The exterior has not been altered. Soldiers who occupied the building served in the Spanish-American War and both world wars. Ownership of Fort McIntosh was transferred to Laredo Junior College in 1947.
Recorded Texas Historic Landmark - 1962